Fix cake splashing bug (issue #429)

No hacks! Fix issue #437

fix for issue #441 ("Cannot overwrite default weapon set 'Default'!" message when no change to weapon set was made)

Set minimums on a few values to avoid camera zooming out past them. partly issue #430. Might be worth defining a new constant for this.

eh. might as well toss this in for reference purposes

Fix bad loc calls in campaign, rope training. Regenerate lua. Untested.

fix for the root cause of issue #434 (previous pages being visible in the background)